An object viewed from a near point dista...

An object viewed from a near point distance of 25 cm, using a microscopic lens with magnification '6', gives an unresolved image. A resolved image is observed at infinite distance with a total magnification double the earlier using an eyepiece along with the given lens and a tube of length 0.6 m, if the focal length of the eyepiece is equal to ______ cm.

Text Solution

AI Generated Solution

Topper's Solved these Questions

JEE MAINS 2021
JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION - A) |40 Videos
JEE MAINS 2021
JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION - B) |20 Videos
JEE MAINS 2021
JEE MAINS PREVIOUS YEAR|Exercise Physics (Section B )|10 Videos
JEE MAINS 2020
JEE MAINS PREVIOUS YEAR|Exercise PHYSICS|246 Videos
JEE MAINS 2022
JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION -B)|10 Videos

Similar Questions

Explore conceptually related problems

The graps shows the variation of magnification m produced by as convex lens with the image distance v . The focal length of the lens is

Magnification of a compound microscope is 30. Focal length of eye - piece is 5 cm and the image is formed at a distance of distinct vision of 25 cm . The magnificatio of the objective lens is

For a certain lens, the magnification of an object when placed at a distance of 0.15 m is twice of the magnification produced, when the distance was 0.2 m. If in both the situations a real image is formed, then what is the focal length (in cm ) of the lens?

The distance between an object and its real image formed by a lens is D. If the magnification is m , the focal length of the lens is

The magnification power of a convex lens of focal length 10cm, when the image is formed at the near point is

If the ratio of magnifications produced by a simple microscope in near point adjustment and far point adjustment is 6/5 then the focal length of the lens is (Take D=25cm )

A compound microscope has a magnifying power of 100 when the image is formed at infinity. The objective has a focal length of 0.5 cm and the tube length is 6.5 cm. Find the fbcal length of the eyepiece.

A compound microscope produces a magnification of 24. The focal length of the eyepiece is 5 cm. The final image is formed at the least distance of distinct vision. What is the magnification produced by the objective ?

An object placed 50 cm from a lens produces a virtual image at a distance of 10 cm in front of the lens. Draw a diagram to show the formation of image. Calculate focal length of the lens and magnification produced.

JEE MAINS PREVIOUS YEAR-JEE MAINS 2021-PHYSICS (SECTION-B)

A circular disc reaches from top to bottom of an inclined plane of len...
Text Solution
|
A rod of mass M and length L is lying on a horizontal frictionless sur...
Text Solution
|
An object viewed from a near point distance of 25 cm, using a microsc...
Text Solution
|
The frequency of a car horn encountered a change from 400 Hz to 500 Hz...
Text Solution
|
A carrier wave V(c)(t)=160 sin (2 pi xx 10^(6) t) volts is made to var...
Text Solution
|
In a given circuit diagram, a 5 V zener diode along with a series resi...
Text Solution
|
The position of the centre of mass of a uniform semi-circular wire of ...
Text Solution
|
In an electric circuit, a call of certain emf provides a potential dif...
Text Solution
|
The total charge enclosed in an incremental volume of 2 xx 10^(-9) m^3...
Text Solution
|
Three particce P,Q and R are moving along the vectors vecA = hati + ha...
Text Solution
|
The centre of a wheel rolling on a plane surface moves with a speed v0...
Text Solution
|
A ray of light passing through a prism (mu = sqrt3)suffers minimum dev...
Text Solution
|
The area of cross-section of a railway track is 0.01 m^2 . The temper...
Text Solution
|
Three students S1, S2 and S3 perform an experiment for determining th...
Text Solution
|
In 5 minutes, a body cools from 75^@C to 65^@C at room temperature o...
Text Solution
|
A system consists of two types of gas molecules A and B having same nu...
Text Solution
|
A light beam of wavelength 500 nm is incident on a metal having work f...
Text Solution
|
A message signal of frequency 20 kHz and peak voltage of 20 volt is us...
Text Solution
|
A 16 Omega wire is bend to form a square loop. A 9 V supply having int...
Text Solution
|
Two circuits are shown in the figure (a) & (b). At a frequency of rad...
Text Solution
|